When catch-up TV first started gaining traction some heralded it as the death of the TV set. Why would anyone invest in a new TV set when they could watch the programme of their choice on their laptop or smartphone, and for free?

When the FIFA circus rolls into Rio next year, it might just change the way we watch television. The final will be produced in 4K ultra-high definition. And if the World Cup has its usual uplifting effect on high-end TV sales, this could be the moment 4K starts to go mainstream. But what is 4K TV and why should we care?

For decades, TV has had a prosperous reign as king of the living room. Entertaining millions daily, it's no wonder we've given the medium ultimate reverence. But just as a monarch's underlings often seek to usurp them, tablets and mobile devices are rising up and gradually stealing attention from TV's once captive and faithful audience.

We watch them, drive them, make phone calls on them and even live in them. Everything today, it seems, is smart. TVs, cars, phones and cities all carry the prefix to display their clever credentials. And next week, with the launch of the new iPhone 5S, another product will be added to the long list of smart.

Online advertising, and paid search advertising in particular, has been held up as the ideal for marketing because of its measurability and the level of tracking it offers. Conversely, offline advertising is inherently difficult to track.

Television is often overlooked when we think of innovation, particularly in light of the rise of PCs, smartphones and the ubiquity of the internet. All this is changing our relationship with the box, and revolutionising television. Looking ahead over the next few years what are key developments that will shake things up?

These televisions are televisions with Internet access, which enables you to use the TV as a portal for all manner of online services. Surf the Web, share email or access any supported video-on-demand service, including YouTube. And much more...